Heating-furnace.



W. W. LININGER & J. G. PITTON. HEATING FURNACE.

APPLICATION FILED 11.1111. 23, 1910.

, 1,001,656. Patented Aug. 29, 1911.

2 SHEBTSSHEET 1.

WITNESSES: Avg 1541701115 W WI-17cm er j W. Q iPzz /fiorcq A TTOIBNEK.

W. W. LININGER & J. G. PITTON.

HEATING FURNACE.

APPLICATION FILED MAR. 23, 1910.

1,001,656 Patented Aug. 29, 1911.

2 SHEETS-SHEET 2.

STATES-v PATENT oFii cE.

-. wn'smi'r w. .Lmmerin Ann JAMESG. rrrrom or DENVER, COLORADO.

f HEATING-FURNACE To all whom it may concern. 4 Be it known that we, WESLEY W. LININ- GER and JAMES Gr. Prr'ron, citizens of the United States of America, residing at Denv'er, in the countyo'f Denver and State of Colorado, have invented certain new and useful 1m rovements in Heating-Furnaces,

of which t e following is a specification.

whichthe calorific element by which the supply'air from one or more desired t This invention'relates to new anduseful improvements in air-heating furnaces and it has for its object toprovide an apparatus in the: provision devices through the instrumentalityoffurnace is heated and the means employed to to the furnace, may be controlled remote points.

An embodiment of our invention is shown in the accompanying drawings in the vadesi rious views of which ated and in which- Figure 1, represents a partial sectional view of our improved furnace in association with the means for supplying heat and airthereto, Fig. 2, a transverse section taken along the line 2-2 Fig. 1, Fig. 3, an enlike parts are similarly larged sectional elevation of the burnerpreferably employed in connection with the furnace, Fig. 4,, a fragmentary elevation looking in the direction of the arrow a Fig. 3, and Fig. 5, a diagrammatic representation of the electrically connected controlling devices employed in the practice of our invention.

Referringtothe drawings by numerical reference characters, let the numeral 2 designate the improved furnace which comprises a coiled conduit 3 surrounded by a shell or jacket 4 which at its upper end, connects with a flue '5 through which the gases of combustion are conveyedinto the atmosphere.

The various convolutions which together constitute the coil 3, are composed of a plurality of parallel pipes connected by means of standard fittings and the "pipes comprised in each convolution are disposed opposite to the spaces between those in the immediately preceding and succeeding ones so that the Specification of Letters Patent. Application filed March 23, 1910. erial No. 551,101.

prises a preferably connects at its upper extremity with an Patented Augf29, 1911.

heat arising from a subjacent source is compelled to circulate around every part of the coil before it reachesthe flue 5.

The coil 3 is connected at its lower extremity with a blower 6, through the instru mentality of which a current of air is continuously 'forced'thereinto and its upper end terminates'in a'manifold 7 which is prefer.- ably disposed within the flue 5 and from Jwhich branch the pipes 8- through which the heated air is conducted to the various rooms of the building in which the furnace is installed. 0

The blower 6 is oper tively associated with an electric motor 9, which by the means hereinafter to be described is connected with a convenient source of electricity such as. an electric lighting system.

While the calorific element which is located in the lower portion of the shell 4 to supply the heat by which the air forced through the coilis brought to the desired temperature, may be of any suitable character, we preferably employ a burner for gaseous fuel, such as is designated by the numeraltlO'in the drawings and which will now bedescribed. I 3

' The device as shown in Figs. 3 and 4, comupright pipe 12 which enlarged hollow, circular plate-13 which be ing provided with a multiplicity of apertures constitutes the burner proper.

A plug valve 14 serves of fluid through the pipe into the burner, and its stem is provided with a gear wheel to control the flow 15 which is operatively engaged by a rack 16 formed upon the longitudinally reciprocatory core. 32 of two' solenoids 17 and 18 which in the operation of our invention serve respectively, to open and close the valve when energized by the closing of the electric circuit in which they are located.

A spark coil 19 disposed in proxim ty to the apertures in the burner 18, s designed for the ignition of the gas at thenitial point of the operation, and in addition to this igniting device, we prov de a valvecontrolled pilotlight' 20 which connects with the pipe 12 below the valve 14.

The motor, the spark coil and thetwo solenoids which as hereinbefore explained, serve respectively to open and close the valve'14, are separately located in electr c circuits with a switch 21, as diagrammatically represented in Fig 5 of the drawings.

The switch 21 has four contacts 22, 28, 24; and 25 which being located in the path of its blade 26, are connected by means of conductors 17 '19", 9, and 18, respectively with the solenoid 17, the spark coil 19, the motor 9 and the solenoid 18. The opposite terminals of the above enumerated electrical devices connect separately by means of wires 17, 19, 9 and 18 with a ground wire 27, which by means of a conductor 28 con nects with a source of electricity 29 whose opposite pole is connected with. the switchblade 26 by means of a wire'30. r

The switch 21 may be of any suitable construction to be operated either manually or in connection with a mechanical or timecontrolled appliance, and while in the drawings but one switch has been shown, it will be understood that by a simple system of obvious electrical connections, a plurality of switches may be installed to control the electrical devices included in our invention from different parts of the building in which it is installed.

In the operation of our invention, a cur rent of air is by means of the blower 6, continuously forced through the coil 3 which is heated through the instrumentality of the subjacent burner 10. As the pipes of which the coil is composed are of small diameter, the air passing through its several convolutions, is quickly heated to a temperature-adequate to heat the various rooms into which the pipes 8 which branch from the manifold 7, open.

To put the furnace in operation from a remote point, the switch blade 26 which is normally in the position shown in the drawings, is slowly moved in the direction of the arrow to successively engage the several contacts. \Vhen it passes the contact 22, the

solenoid 17 is energized and the core 32 being in consequence drawn upwardly, opens the valve 1 1 to admit gas into the burner 13, and the subsequent engagement of the blade 2G with the contact 23, closes the circuit of the coil 19 to produce a spark by which the gas is ignited. The blade is now moved to the contact 24 of the motor circuit and remains in this position (shown in broken lines in Fig. until it 1s desired to d1II1m-- what we claim and desire to secure by Letters Patent is 1. heating furnace comprising in combination, a conduit, a conduit connection at one end thereof, a contrivance for forcing air into its opposite end, an electric motor to actuate said contrivance, a burner for gaseous fuel, disposed to heat the said conduit, a valve for controlling the supply of fuel to said burner, an electrical device as sociated with said valve to open and close the same, and a switch electrically c011- nected with the said motor and the said device whereby they may be successively energized. w

2. A heating furnace comprising in combination, a conduit, a conduit connection at one end thereof, a contrivance for forcing duit, a valve for controlling the supply of fuel to said burner, a mechanism for openmg and closing said valve, solenoids whose cores are connected with said mechanism to move I it in opposite directions, and a switch in electric circuits with said motor and said solenoids whereby they may be energized successively.

3. .A heating furnace comprising in combination, a conduit, a conduit connection at one end thereof, acontrivance for forcing air into its opposite end, an electric motor to actuate said contrivance, a burner for gaseous fuel,

disposed to heat the said conduit, a valve for controlling .the supply of fuel to said burner, a spark coil for igniting the gas escaping from the burner, an electrical device for openmg and closing said valve, and

a switch in separate electric circuits with said motor said device and said spark coil whereby they maybe successively energized.

4:. In combination, a conduit having a distributing connection at one end thereof, an electrically driven contrivance for forcing air into its opposite end, a burner for fluid fuel disposed to heat said conduit, an

electric device for controlling the supply of fuel to said burner, and circuit brea nng means adapted to successively actuate said contrivance and said device from a mote from the furnace.

5. In combination, a conduit having a point re;

distributing connection at one end thereof, device and said ignition means from a point'10 an electrically driven contrivance for forcremote from the furnace.

ing air into its opposite end, a burner for In testimony whereof We have affixed our fluid fuel disposed toheat saidconduit, an signatures in presence of two Witnesses.

electric device for controlling the supply WESLEY W. LININGER. of fuel to said burner, electrically. operated JAMES Gr. PITTON. means for igniting the fuel at said burner, Witnesses: and a circuit breaking means adapted to G. J. RoLLANDET,

successively actuate said contrivance, said M. L. GEARY. 

